/*
 * Util
 *
 * Author: Lasse Collin <lasse.collin@tukaani.org>
 *
 * This file has been put into the public domain.
 * You can do whatever you want with this file.
 */

package org.tukaani.xz.common;

public class Util
{
  public static final int STREAM_HEADER_SIZE = 2;

  public static final int STREAM_FOOTER_SIZE = 6;

  public static final long BACKWARD_SIZE_MAX = 1L << 34;

  public static final int BLOCK_HEADER_SIZE_MAX = 1024;

  public static final long VLI_MAX = Long.MAX_VALUE;

  public static final int VLI_SIZE_MAX = 9;


  public static int getVLISize(long num)
  {
    int size = 0;
    do
    {
      ++size;
      num >>= 7;
    } while (num != 0);

    return size;
  }
}
